Cognomen סיאד (Sead 
, Sijad 
, Siyaad 
) , worldwide, is a common family name. The family name סיאד is habitual in North Macedonia, where it is quite a common surname, Somalia, and Bosnia and Herzegovina, where it is quite a rare surname. Not in comparison with a country's population, the name is most common in Egypt, Somalia, and Ethiopia. Also, סיאד is the forename as well as the last name.